[FIX] hr_holidays: correct default date_to from calendar

Before this commit, highlighting several days
from the calendar view in Time Off would still take the
first day selected as the default date_to.

The expected behaviour is that it should be the last
day highlighted instead.

closes odoo/odoo#154469

X-original-commit: fcd2b141a337913e376f7ce0d2b313b68d97d6cc
Signed-off-by: Sofie Gvaladze (sgv) <sgv@odoo.com>
Signed-off-by: Bertrand Dossogne (bedo) <bedo@odoo.com>

addons/hr_holidays/static/src/views/calendar/calendar_model.js

@@ -38,7 +38,7 @@ export class TimeOffCalendarModel extends CalendarModel {
         }
         if ("default_date_to" in context) {
             context["default_date_to"] = serializeDateTime(
-                deserializeDateTime(context["default_date_from"]).set({ hours: 19 })
+                deserializeDateTime(context["default_date_to"]).set({ hours: 19 })
             );
         }
         return context;